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Light elements in massive single and binary stars

Published online by Cambridge University Press:  23 April 2010

N. Langer ,
I. Brott ,
M. Cantiello ,
S. E. de Mink ,
R. G. Izzard  and
S.-C. Yoon
N. Langer
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, Germany Sterrenkundig Instituut, University of Utrecht, Postbus 80000, NL-3508TA, Utrecht, the Netherlands
I. Brott
Affiliation:
Sterrenkundig Instituut, University of Utrecht, Postbus 80000, NL-3508TA, Utrecht, the Netherlands
M. Cantiello
Affiliation:
Sterrenkundig Instituut, University of Utrecht, Postbus 80000, NL-3508TA, Utrecht, the Netherlands
S. E. de Mink
Affiliation:
Sterrenkundig Instituut, University of Utrecht, Postbus 80000, NL-3508TA, Utrecht, the Netherlands
R. G. Izzard
Affiliation:
Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, Boulevard du Triomphe, 1050Brussels
S.-C. Yoon
Affiliation:
Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, Germany
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Abstract

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We highlight the role of the light elements (Li, Be, B) in the evolution of massive single and binary stars, which is largely restricted to a diagnostic value, and foremost so for the element boron. However, we show that the boron surface abundance in massive early type stars contains key information about their foregoing evolution which is not obtainable otherwise. In particular, it allows to constrain internal mixing processes and potential previous mass transfer event for binary stars (even if the companion has disappeared). It may also help solving the mystery of the slowly rotating nitrogen-rich massive main sequence stars.

Keywords

Stars: abundancesbinaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 411 - 420
Copyright
Copyright © International Astronomical Union 2010

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